Inatsurumi - Inatsurumi

...The fact that thunder appears in the form of a snake is clear from the story in the section on Emperor Yuryaku in the Kojiki about Chiisakobe no Sugaru capturing thunder, but thunder was also closely related to rice. This is also known from the fact that words such as inazuma, inabikari, and inatsurumi appeared from the Middle Ages onwards, and even today in rural areas there is a custom in various places of erecting green bamboo and hanging shime (a sacred string) to worship when lightning strikes a rice field. Since thunder accompanies rain, the thunder god has long been associated with the attributes of a water god. ...

*Some of the terminology explanations that mention "Inatsurumi" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…雷が蛇の形をもって出現することは，《古事記》雄略天皇条の少子部蜾蠃（ちいさこべのすがる）が雷をとらえた話によっても明らかであるが，雷はまた稲との関連が深かった。それはイナズマ，イナビカリ，イナツルミなどという語が中世以後見えることによっても知られるが，いまなお農村では稲田に落雷すると青竹を立て注連（しめ）を張って祭る習俗が各地に残っている。雷が雨を伴うので雷神は古くから水神の属性をもっていた。…

※「イナツルミ」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報